Use dompdf's Unicode Mode is checked and so is
Printer-friendly URLs list in system pages

The generated pdf never displays accented characters correctly in the URL listing as shown below:

URL source: http://domain.com/fr/content/bienvenue-%C3%A0-domaincom

the URL (in the browser address bar) actually reads bienvenue-à-domaincom in opera and chrome browsers, but in IE it reads as shown - the gibberish.